Joss grinned at her and nodded as her head was against his, meaning it made her nod too, which made him laugh.
"Makes sense," Serenity said with a nod, "but you're my son and I haven't done a good job of being around. Or...any job of being around. I'm here now. My space is yours. And I really don't mind if you wake me up." She grinned and leaned in to kiss his cheek.